NEWAGE 85MS SERVICE MANUAL WINGET LIMITED PO BOX 4 EDGEFOLD INDUSTRIAL ESTATE PLODDER LANE BOLTON LANCS BL4 OLS U.K. Tel:++44(0)04 854650 Fax:++44(0)04 854663 E-mail service@winget.co.uk www.winget.co.uk GEARBOX
Introduction Winget Limited gratefully acknowledge the assistance given by Newage Transmissions Limited in the preparation of this manual, however neither Winget Limited or Newage Transmissions can be held responsible for any errors or ommissions. The procedures described within this manual should enable experienced service personel to strip, repair and re-build Newage 85MS Gearboxes fitted to Winget 4B and 4S range site dumpers in a safe and competant manner. The procedures are not intended to be used by personnel who are unfamiliar with the product or mechanically inexperienced. It is assumed that personnel are aware of the Health and Safety Regulations which should be applied but the following should act as a reminder. Whenever possible any repairs or service should be carried out in a clean environment. If work must be carried out on site or in the field steps should be taken to ensure that dirt or foreign materials cannot enter the assembly. Ensure all work tools are in good condition and only use the correct tool for the job in hand. Always wear safety spectacles when using soft or hard faced hammers, chisels, drifts or when using air tools. Wear safety spectacles when cleaning components or when grinding. Do not misuse air lines and be aware of the damage compressed air can cause if misused. Always make sure lifting equipment is in good condition and the Safe Working Load exceeds the weight of the component to be lifted. Always use suitable supports i.e. axle stands or baulks of timber in conjuction with hydraulic jacks etc. Never rely on hydraulic jacks alone to support a machine. Be aware of hot surface temperatures and take care when draining hot oils. Always dispose of waste oils in accordance with local and national regulations. Whenever possible always disconnect the battery or battery isolator when working on the machine to prevent electrical shorts and unauthorised starting. Refer to the operators handbook for a guide to the correct sequence for assembling components and sub-assemblies. Oils, fuels, silicone sealer etc can cause skin diseases if allowed to contaminate the skin. Always apply barrier creams, wear suitable protective clothing or when contamination is unavoidable clean the area with soap and water as soon as possible. Do not use thinners or other solvents to clean skin. Health and Safety is a matter of common sense. If common sense is applied correctly the risk of accidents can be reduced. Spares for Newage Gearboxes fitted to Winget Equipment can only be obtained from Winget Limited or one of our authorised distributors and not from Newage Transmissions
Limited. Always quote your machines serial number and model together with axle serial number and model when ordering spare parts. 85MS Gearboxes are designed to operate under arduous conditions and providing they are regularly and correctly maintained they will provide long trouble free service. Whilst every effort is made to ensure the contents of this manual are accurate Winget Limited and Newage Transmissions reserve the right to alter specification without prior notification and certain sections of this manual may then no longer apply.
GEARBOX 85MS Description The gearbox provides three forward and one reverse gear. The gearcase is constructed of heavy duty cast iron for rigidity and strength and the shafts are hardened nickel steel supported by ball and roller bearings. The gear train is of the constant mesh type and shifting is achieved by substantial involute dogs of gear tooth form activated by a robust selector mechanism. The design of the gear train is such that it will accept maximum torque in low gears for long periods. The weight of the basic 85MS is approximately 34KG. General When overhauling the gearbox cleanliness is important, remove all dirt, cement etc from the outside of the box before any inner parts are exposed. Take care with the dust within the clutch/bell housing as it may contain minute particles of asbestos fibre which should not be blown out with an airline. Damp the dust down and wipe out using damp cloths. Dispose of the cloths safely after use. Use a mandrel press, if available, for pressing out bearings, shafts etc. otherwise use hardwood or non-ferrous metal drifts. Work on a clean suface and wash all parts in clean solvent, lightly oiling before reassembly. If new ball races are to be fitted do not unpack until they are required. Drain the oil before stripping the gearbox. Servicing and Disassembly Remove the bolt through the clutch operating lever and remove the lever from the crossshaft. Undo and remove the cotter through the clutch fork, release the cross-shaft, circlip and remove the cross-shaft, fork, circlip and washer. Undo the six M6 setscrews retaining the oil seal housing/cover within the clutch/bell housing and remove the cover, retrieve the six small nylon washers and gasket. Undo the six M0 setscrews and the two M6 setscrews inside the clutch/bell housing and remove the housing. The upper two M0 setscrews are fitted with nylon sealing washers not spring washers. Remove the hexagon headed dipstick, undo the six M6 setscrews securing the top cover and remove the cover complete with gearlever. The detent spacer, spring and ball for the nd/3rd speed selector shaft is retained into the casing by the top cover and these should be removed, it may be necessary to use a magnet to retrieve the detent ball.
Using the special tool spread the spring loaded safety interlock and remove from the interlock plate. If the special tool is not available insert the jaws of an open end spanner which is slightly wider than the interlock plate between the safety interlock to prevent it snapping shut and lift out, leave the spanner between the interlock until reassembly. Untab the bolt through the output flange, prevent the flange from turning and slacken the bolt. Remove the bolt, tabwashers, large retaining washer and pull off the flange. The splines of the flange are sealed with silicone sealer which should be cleaned off. Undo the six M0 setscrews and remove the rear cover, the cover is located on dowels and care should be taken when removing. Remove the short spacer off the end of the mainshaft. Remove the grubscrew securing the nd/3rd speed selector fork to the shaft, slide out the shaft and remove the fork. The grubscrew is peened over and incorporates a nylon locking insert within the threads and can be exceptionally tight when removing. It is recommended that this grub screw should be discarded after removal and a new screw fitted on reassembly. Remove the split pins through the two clevis pins, pull out the pins and lift out the interlock plate. The rear clevis is a sliding fit in the case and can be pulled free, the front clevis is screwed into the case and should not be removed unless it is damaged or a new case is being fitted. Untab the locknut and remove the locknut and grubscrew securing the st/reverse selector fork to the st/reverse selector shaft. Undo the grubscrew located on the side of the casing adjacent to the selector shaft and remove the detent spring and ball. Slide out the shaft and lift out the fork. As the shaft is slid out of the bore on the rear of the box it will allow the three small detent balls to drop out of the cross drilling in the case between the two selector shafts these balls should be retrieved to prevent their loss. Removal of Gear Set Remove the primary shaft assembly, it may be necessary to lever between the mainshaft and primary shaft or to tap out the primary shaft using a soft drift. Take care not to damage the gear teeth in the process. Withdraw the needle bearing assembly located in the end of the primary shaft. Remove the circlip and press the ball race complete with snap ring off the primary shaft. Align the teeth on the front of the mainshaft so they will pass between the teeth on the st speed gear carried by the layshaft and tap the mainshaft out of the box. The gears and spacers are removed from the back end of the mainshaft, one by one, after it has cleared its supporting ball race in the back of the case. From inside the case tap out the ball race complete with snap ring.
Remove the two small ball race retaining blocks retaining the larger of the two layshaft ball races. Align the teeth on the layshaft so they will pass the teeth on the reverse pinion and tap the layshaft out of the small ball race until the rear larger ball race is clear of the case. Place two plates approximately 3mm thick between the ball race and case and tap the layshaft back into the gearbox, thus removing the ball race. Alternatively use a suitable bearing puller. Remove the small spacer and reverse layshaft gear via the ball race bore in the case, the layshaft and remaining gears can be withdrawn through the opening in the top of the case. Remove the bearing. The st speed gear on the layshaft is a tight fit, remove the st speed gear, reverse gear and the nd speed sliding gear. The layshaft is now disassembled. Undo the nuts on the reverse idler shaft and remove the retaining washer, gear, thrust washer and needle bearing. Undo the four small setscrews and from inside the case carefully tap out the idler shaft. Check the needle bearing inner race located on the idler shaft. Reassembly Details Clean all parts incuding the interior of gearbox case thoroughly, examine all parts for wear or damage. If the gearbox has been used on continuous heavy duty it is advisable to replace all ball races, needle bearings and oil seals as a matter of course. New oil seals should be fitted by pressing them in with a flat steel plate which covers their entire area, otherwise they may buckle and be spoiled. Output flanges frequently show signs of heavy wear where the oil seal has contacted them. When this condition is observed the flange should be replaced. Splines on the primary shafts which engage with the clutch friction discs are susceptable to wear and distorton, check the splines with a new friction disc, if movement within the splines is excessive or the friction disc will not slide freely on the splines the shaft should be replaced. The shafts and gears are treated with a phosphating process to ensure satisfactory performance. Do not attempt to remove any apparent discolouration by polishing bearing surfaces on shafts or in the bores of gears as seizure may result from the exposure of unprotected steel surfaces. Coat all threads on setscrews etc with threadlock on assembly. Reassembly of Main Gearbox Reverse Idler Tap the reverse idler shaft into the case and refit the four small setscrews and spring washers. Locate the thrustwasher, gear and needle bearing onto the shaft. Fit the retaining washer onto the shaft with the flat uppermost. Secure the locknuts.
Layshaft Fit the smaller of the two layshaft support bearings so that it is flush with the outer face of the case. The layshaft should now be partly re-assembled. Fit the inner st speed gear and the inference fit st speed reducton gear (boss inwards towards the inner st speed gear). The inner st speed gear must have at least.007" thou end float. Slip on the nd speed sliding gear with the collar towards the st speed gears. Insert this sub assembly into the case through the top and locate into the small support bearing working the gear teeth past the reverse idler pinion. Through the ball race bore in the back of the case insert the reversing pinion and small spacer. Stand the case on its front face to prevent the small ball race being pushed out of the case as the larger ball race is tapped into place over the layshaft and into the case. Fit the retainers, which should be down tight on the ball race. Spin the layshaft and check all is free. Mainshaft Fit the mainshaft supporting ball race complete with the snap ring into the back face of the case. Pass the mainshaft through the front of the case feeding on the gears in this order:- st speed gear (collar inwards), nd speed gear, spacer and the output gear (with the narrow boss outwards). They must all be located on their correct shaft diameter as the mainshaft is entered into the supporting ball race. Tap the mainshaft through the ball race in the back face taking care not to dislodge the ball race in the process. Place the gear sets in neutral and turn the mainshaft checking all turns freely. Primary Shaft Fit the primary shaft supporting ball race complete with snap ring over the shaft and tap home. Fit the circlip. Grease the primary shaft needle bearing and carefully fit the primary shaft over the mainshaft taking care to not to damage the needle bearing in the process. Engage each gear inturn, turning the primary shaft and checking all is free. Selector Forks and Shafts Refit the st/reverse selector shaft (lower) and the st/reverse selector fork, refitting the grubscrew, locking washer and lock nut. Retab the locknut.
Replace the three small detent balls into the cross drilling between the selector shafts. Slide the lower shaft forward so the balls are below the level of the bore for the upper shaft. Clean up the peened threads in the nd/3rd speed selector fork, if the old one is to be reused, using an M8 tap. Refit the nd/3rd speed selector fork secure to the shaft using a new special grubscrew. Detents and Interlock Plate Ensure the gearsets are in neutral and refit the st/reverse detent ball and spring into the side of the gearbox. Coat the threads of the grubscrew with threadlock and screw into the case until flush. Check the st/reverse gear engage correctly, peen the grubscrew and case as a secondary measure to prevent the grubscrew unscrewing. Drop the nd/3rd detent ball and spring into the bore above the nd/3rd speed selector shaft and fit the short spacer. Using one of the clevis pins and a new split pin, assemble the rear clevis onto the interlock plate. Maintaining the gearsets in neutral, locate the assembly into the gearbox between the selector forks, using the second clevis secure the interlock plate to the front clevis. Before fitting the split pin ensure that the slots in the interlock plate and forks are aligned, if not adjust the position of the interlock plate by screwing the front clevis in or out of the case. Fit the split pin. Locate the spring loaded safety interlock over the interlock plate and slide off the special tool or spanner jaws. Rear Cover Coat the gasket surfaces with a suitable jointing compound, place the gasket over the dowels locate the spacer over the mainshaft. Fit the rear cover, lubricating the oil seal with grease, tap the rear cover over the dowels and tighten the six M8 setscrews. Push the output flange fully onto the mainshaft, run a bead of silicone sealer in to the flange sealing the end of the splines, fit and tighten the retaining washer, lockwasher and bolt. Retab the bolt. Top Cover and Gear Lever Remove the gearlever knob and locknut, untab the steel cover and remove both the steel and rubber covers from the gearlever. Pull the gearlever out from underneath the top cover, remove both pads from the top cover. Pull the retaining plate and spring off the end of the gearlever. Inspect the parts and replace any worn parts. Refit the two pads, push the gearlever back up into the top cover. Refit the rubber and steel protective covers and retab the steel cover, refit the locknut and gear lever knob. Slip the spring over the gearlever and fit the retaining plate.
Coat the gasket surfaces with a suitable jointing compound and lay the gasket in place. Refit the top cover assembly ensuring the gear lever engages through the safety interlock into the selector forks, secure the top in place with the six M6 setscrews. Check that each gear is easily obtained. Clutch/Bell Housing Press two new bushes into the housing, coat the mating surface of the housing and gearbox with a suitable jointing compound and secure the housing onto the gearbox uising the six M0 and two M8 setscrews. Fit new nylon sealing washers to the two upper M0 setscrews. Coat the mating surfaces of the clutch/bell housing and seal housing with a suitable jointing compound, lay the gasket in place, lubricate the oil seal with grease and secure the seal housing into place using the six M6 setscrews, fit new nylon sealing washers. With the clutch/bell housing facing you pass the cross-shaft into the housing from the R/H side splines first. Push the cross-shaft through the clutch fork then fit the circlip into the grove cut into the shaft, slip the flat washer onto the shaft upto the circlip. Pass the shaft through the second bush. Fit the cotter pin, nut and washer. Fit the clutch operating lever to the cross-shaft. Top up the oil and refit the dipstick. Tightenting Torques /4 UNF Threads 0lbft 3.5NM M6 Threads 9lbft.NM M8 Threads lbft 9.8NM M0 Threads 43lbft 58.3NM Output flange bolt 40lbft 54NM
Coat the gasket surfaces with a suitable jointing compound and lay the gasket in place. Refit the top cover assembly ensuring the gear lever engages through the safety interlock into the selector forks, secure the top in place with the six M6 setscrews. Check that each gear is easily obtained. Clutch/Bell Housing Press two new bushes into the housing, coat the mating surface of the housing and gearbox with a suitable jointing compound and secure the housing onto the gearbox uising the six M0 and two M8 setscrews. Fit new nylon sealing washers to the two upper M0 setscrews. Coat the mating surfaces of the clutch/bell housing and seal housing with a suitable jointing compound, lay the gasket in place, lubricate the oil seal with grease and secure the seal housing into place using the six M6 setscrews, fit new nylon sealing washers. With the clutch/bell housing facing you pass the cross-shaft into the housing from the R/H side splines first. Push the cross-shaft through the clutch fork then fit the circlip into the grove cut into the shaft, slip the flat washer onto the shaft upto the circlip. Pass the shaft through the second bush. Fit the cotter pin, nut and washer. Fit the clutch operating lever to the cross-shaft. Top up the oil and refit the dipstick. Tightenting Torques /4 UNF Threads 0lbft 3.5NM M6 Threads 9lbft.NM M8 Threads lbft 9.8NM M0 Threads 43lbft 58.3NM Output flange bolt 40lbft 54NM
GEARBOX 85MS
GEARBOX, 85M Item No Description Qty GEARBOX, 85MS, assembly COVER, protective COVER, rubber 3 SPRING 4 PLATE, retaining 5 BALL 3 6 BALL, detent 7 SPRING 8 SCREW, grub 9 SCREW, grub WASHER, locking NUT 3 SHAFT, selector, st & reverse 4 PIN, split 5 CLEVIS, interlock plate 6 PIN, clevis 7 PLATE, interlocking 9 CLEVIS, interlock plate 0 SHAFT, selector, nd & 3rd speeds SEAL, bonded SPACER 3 DIPSTICK 4 COVER, top 5 GASKET 6 WASHER, spring 6 7 SCREW, set 6 8 KNOB 9 NUT 30 LEVER, gear select 3 PAD, gear lever 3 CLIP, bearing retainer 33 SCREW 34 WASHER, flat 36 BEARING 37 GEAR, reverse 38 SPACER 39 GEAR, nd speed 40 SHAFT, lay 4 BEARING, needle roller 4 GEAR, st speed 44 GEARCAS 45 BEARING 46 SHAFT, input 47 SCREW, grub 48 BEARING, c/w snap ring 49 CIRCLIP 50 PLUG, oil drain 5 NIPPLE 5 BUSH 53 SHAFT, clutch FOR PART NUMBERS REFER TO RELEVANT PARTS MICROFICHE OR OPERATORS HANDBOOK
GEARBOX 85MS
GEARBOX, 85M Item No Description Qty GEARBOX, 85MS, assembly 54 SEAL, oil 55 NUT 56 57 BOLT LEVER, clutch 58 HOUSING, clutch 59 WASHER, spring 60 SCREW 6 WASHER, spring 6 6A WASHER 6 SCREW, set 6 63 WASHER, nylon 6 64 SCREW, set 6 65 GASKET, front cover 66 COVER, front, assembly 67 WASHER 68 CIRCLIP 69 PIN, NUT & WASHER assembly 70 FORK, clutch 7 SCREW 7 WASHER, tab 73 SPACER 74 WASHER 75 FLANGE, output 76 SHIELD, dust 77 SEAL, oil 78 BOLT 6 79 GASKET 80 DOWEL 8 BEARING 8 SPACER 83 END COVER 84 MAINSHAFT 85 SCREW 4 86 SHAFT, idler 87 WASHER, thrust 88 RING, inner 89 BEARING, needle 90 PINION, reverse 9 WASHER, idler 9 NUT 93 NUT, locking 94 GEAR st speed 95 GEAR, output 96 SPACER 97 GEAR, nd speed 98 NEUTRAL, interlock 99 FORK, selector 00 FORK, selector 0 SCREW, set 8/ WASHER, spring 8/ FOR PART NUMBERS REFER TO RELEVANT PARTS MICROFICHE OR OPERATORS HANDBOOK
NEWAGE TRANSMISSIONS: TORQUE VALUES FOR FASTENERS WITH CLEAN & DRY THREADS IMPERIAL IN POUNDS-FEET (LBF-FT) PLAIN THREADS METRIC IN NEWTON/METRES (Nm) PLAIN THREADS GRADE S GRADE V GRADE X GRADE 8.8 GRADE 0.9 GRADE.9 SIZE NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. SIZE NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. /4 8 0 7 3 0 4 6 5 6 7 5 8 9 7 0 8 5/6 7 9 4 3 6 9 8 3 3 6 0 8 4 6 7 9 4 3/8 30 35 6 4 47 35 50 58 43 8 4 8 0 33 37 9 40 47 34 7/6 48 55 40 65 75 55 79 9 67 0 48 56 40 67 77 57 80 9 68 / 73 84 6 00 5 85 40 03 83 96 7 5 30 00 40 6 9 5/8 46 68 4 00 30 70 43 79 06 6 06 0 60 80 30 40 347 399 95 3/4 55 94 7 349 40 97 43 487 360 0 40 450 340 560 640 480 677 779 576 " 606 696 55 89 953 704 004 55 853 4 694 770 570 90 040 800 7 347 995 IMPERIAL IN POUNDS-FEET (LBF-FT) COATED THREADS, ZINC & ZINC PASSIVATED METRIC IN NEWTON/METRES (Nm) COATED THREADS, ZINC & ZINC PASSIVATED GRADE S GRADE V GRADE X GRADE 8.8 GRADE 0.9 GRADE.9 SIZE NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. SIZE NOM. MAX. MIN. NOM. MAX. MIN. NOM. MAX. MIN. /4 0 9 4 6 7 0 5 5 7 8 6 0 9 4 0 5/6 4 8 8 33 4 35 40 9 6 4 0 7 0 5 4 8 3/8 38 43 3 5 59 44 63 7 53 8 30 34 5 4 48 36 5 58 43 7/6 59 68 5 8 94 69 99 3 84 0 59 68 50 84 96 7 00 5 85 / 9 05 78 5 44 06 5 74 9 04 9 88 46 68 4 75 0 49 5/8 83 0 56 50 88 3 303 349 58 6 57 96 9 36 46 307 434 499 369 3/4 39 367 7 437 50 37 59 609 450 0 50 577 46 706 8 600 847 974 70 " 757 87 643 036 9 88 55 443 067 4 868 998 737 0 403 037 464 684 44